package njust.tables.train;

import java.util.Date;
import java.util.List;
import org.hibernate.LockOptions;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.transaction.annotation.Transactional;

/**
 * A data access object (DAO) providing persistence and search support for
 * InfoTrain entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see njust.tables.train.InfoTrain
 * @author MyEclipse Persistence Tools
 */
@Transactional
public class InfoTrainDAO {
	private static final Logger log = LoggerFactory
			.getLogger(InfoTrainDAO.class);
	// property constants
	public static final String YEAR = "year";
	public static final String ROLE = "role";
	public static final String RS_ALL = "rsAll";
	public static final String RS_OVERSTD = "rsOverstd";
	public static final String DEGREE_ALL = "degreeAll";
	public static final String DEGREE_OVERSTD = "degreeOverstd";
	public static final String PUBLISHER = "publisher";

	private SessionFactory sessionFactory;

	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}

	private Session getCurrentSession() {
		return sessionFactory.getCurrentSession();
	}

	protected void initDao() {
		// do nothing
	}

	public void save(InfoTrain transientInstance) {
		log.debug("saving InfoTrain instance");
		try {
			getCurrentSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(InfoTrain persistentInstance) {
		log.debug("deleting InfoTrain instance");
		try {
			getCurrentSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public InfoTrain findById(java.lang.Integer id) {
		log.debug("getting InfoTrain instance with id: " + id);
		try {
			InfoTrain instance = (InfoTrain) getCurrentSession().get(
					"njust.tables.train.InfoTrain", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(InfoTrain instance) {
		log.debug("finding InfoTrain instance by example");
		try {
			List results = getCurrentSession()
					.createCriteria("njust.tables.train.InfoTrain")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding InfoTrain instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from InfoTrain as model where model."
					+ propertyName + "= ?";
			Query queryObject = getCurrentSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByYear(Object year) {
		return findByProperty(YEAR, year);
	}

	public List findByRole(Object role) {
		return findByProperty(ROLE, role);
	}

	public List findByRsAll(Object rsAll) {
		return findByProperty(RS_ALL, rsAll);
	}

	public List findByRsOverstd(Object rsOverstd) {
		return findByProperty(RS_OVERSTD, rsOverstd);
	}

	public List findByDegreeAll(Object degreeAll) {
		return findByProperty(DEGREE_ALL, degreeAll);
	}

	public List findByDegreeOverstd(Object degreeOverstd) {
		return findByProperty(DEGREE_OVERSTD, degreeOverstd);
	}

	public List findByPublisher(Object publisher) {
		return findByProperty(PUBLISHER, publisher);
	}

	public List findAll() {
		log.debug("finding all InfoTrain instances");
		try {
			String queryString = "from InfoTrain";
			Query queryObject = getCurrentSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public InfoTrain merge(InfoTrain detachedInstance) {
		log.debug("merging InfoTrain instance");
		try {
			InfoTrain result = (InfoTrain) getCurrentSession().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(InfoTrain instance) {
		log.debug("attaching dirty InfoTrain instance");
		try {
			getCurrentSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(InfoTrain instance) {
		log.debug("attaching clean InfoTrain instance");
		try {
			getCurrentSession().buildLockRequest(LockOptions.NONE).lock(
					instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static InfoTrainDAO getFromApplicationContext(ApplicationContext ctx) {
		return (InfoTrainDAO) ctx.getBean("InfoTrainDAO");
	}
}